The early 21st century may someday be looked upon as a pivotal point in the Earth's history. At its most dramatic, this era might someday be thought of as the beginning of the end. …
Students with a basic understanding of the environment and concern for its future know the importance of preserving biological diversity. Biodiversity is the variety of living …
One of the most troubling aspects of pollution in this age is its pervasiveness - there are few places left where a person or an animal can live without being exposed to pollution. …
